The project objective is to validate the types of eye trackers that may most effectively be employed in the rehabilitation evaluation and training of people with central scotomas. The eye trackers will include equipment representing the three basic types of eye trackers, namely, 1) electrophysical (e.g., electrooculogram or EOG), 2) front surface trackers (e.g. pupil), and 3) retinal trackers (e.g. SLO). The most appropriate eye tracking system for evaluation and training will depend on the type of eye movements (i.e., fixations, saccades, and pursuits) that comprise the complex eye movements used for visual skills (e.g., spotting, localization, scanning, tracing, tracking) which are being evaluated/trained for visually guided activities of daily living (e.g., reading, face recognition and television watching).